Hydroxy or alkoxy phosphonate compositions and amine salts thereof

ABSTRACT

HYDROXY SUBSTITUTED PHOSPHONATES ARE PRODUCED BY REACTING A HALOHYDRIN WITH AN ALIPHATIC OR AROMATIC PHOSPHITE. AT HIGH TEMPERATURES, AN ACIDIC COMPOUND IS FORMED INSTEAD OF, OR AT LEAST SUBSTANTIALLY IN PLACE OF THE NEUTRAL COMPOND. THE NEUTRAL ESTER OF THE PHOSPHONIC ACID CAN BE SUBJECTED TO EITHER ACIDIC OR BASIC HYDROLYSIS TO FORM THE FREE PHOSPHONIC ACID, WHICH IN TURN CAN REACT WITH ALKYL AMINES OR ALKYLOL AMINES TO FORM EXCELLENT CORROSION INHIBITORS. THE NEUTRAL ESTERS THEMSELVES CAN BE USED AS ADDITIVES FOR EXTREME PRESSURE LUBRICANTS.



